FIELD: electrical equipment engineering. SUBSTANCE: in the device for checking the operation of switches provision is made for irreversible rotary motion of the external control element relative to the switch owing to the fact that the external control element is made as a propeller secured on the drive shaft. EFFECT: simplified design and reduced time of operation checking. 3 cl, 4 dwg
Authors
Dates
1994-09-15—Published
1992-06-22—Filed